Be prepared to battle hard if you're caught!Basically throughout the game you have to collect card keys, several of them in fact that can be used over and over for a variety of doors, to open new areas while using stealth moves to bypass guards and rescue kidnapped people who provide enough helpful advice to make the adventure at least a little memorable.

While not as detailed as Metal Gear Solid (PSX), the original Metal Gear is a game worth playing for fans of the series (to get to experience the origins of the story discussed in later games) as well as for fans of classic Nintendo game.